At what rank did Jim Mattis retire from the Marine Corps?
Three-star general
Four-star general
Five-star general
Two-star general
Answer
James Mattis retired from the Marine Corps at the rank of four-star general, the highest rank in the Marine Corps. He served as the 26th Commandant of the Marine Corps from 2010 to 2013 and as the 26th Secretary of Defense from 2017 to 2019.